We recognise that for the majority of people having a new boiler system installed is an unfamiliar process, which can be confusing with the various options of boilers and systems available.

Our new boiler replacement guide covers the types of central heating systems to choose from for your home, the different boiler brands, plus we take you through our boiler installation process by our trained Gas Safe qualified engineers. Very often a new boiler will be an unexpected expense that you haven’t planned for, so we discuss the Boiler Plan UK payment plans we offer to spread the costs and make it more affordable.

Boiler replacement: when is the right time?

The boiler is a vital part of the home, providing heating and hot water throughout the house, but we often take it for granted. On average central heating boilers may only last for up to 15 years or less. Here are some reasons when it could be worth replacing your boiler…


Your boiler has broken down or it’s not working to the level it should be. It can be false economy to repair an old boiler, which may go wrong again, and better to get a brand new boiler that’s more efficient and reliable.

Efficiency rating:

An older boiler is likely to be less efficient than a new boiler because manufacturers are looking at ways to produce more and more efficient boilers every year. If your boiler has a low efficiency rating it could be costing you more in energy bills over time than the cost of a new boiler.

No longer meets your needs:

An extension on your property may mean that the existing boiler is no longer powerful enough to deliver heating and hot water to the extra rooms in the house. Rather than try to manage with a boiler that is not up to the job and not get the heating and hot water you want, it would be better to factor in a new boiler as part of the house renovation costs.

Selling/renting your house:

An old inefficient boiler and central heating system is likely to be picked up on a survey by prospective buyers so it’s better to replace it before you put the house on the market and cover the boiler installation cost in the house price. Similarly with renting, you are more likely to attract and retain tenants with a reliable up to date boiler and central heating system.



A new more efficient boiler can be a ‘cash neutral’ purchase because the money you save on energy bills and boiler cover is often enough to offset the cost of a new boiler.

What type of boiler do I need?

Combi Boiler

Their compact size makes Combi boilers the most popular type as they can be easily housed in a garage or cupboard. They provide instant hot water as well as heating, with no additional water tanks needed and are most suitable for smaller homes with one bathroom.

Standard Boiler

The Standard boiler is ideal for larger houses with several bathrooms and a good choice if water pressure in your house is low. In contrast to the combi boiler, there are additional hot and cold water tanks required for this type of boiler.

System Boiler

Just like the Standard boiler, the System boiler is ideal for larger homes with multiple bathrooms. It’s also more economical to run and does not need the additional cold water tank in the loft.

Back Boiler

Back boiler can use gas, electric or solid fuel and is often located behind a fireplace. As it tends to be an older system, it could be worth changing to a more efficient Combi boiler system which would reduce your monthly heating bills.

Popular boiler brands

Worcester Bosch

Worcester Bosch are the largest manufacturer of boilers in Britain and winners of a Which? Best Buy award.

Read more about Worcester Bosch boilers


Founded in 1874, Vaillant are leaders in renewable technologies and their ecoTEC range of boilers have been awarded the Quiet Mark.

Read more about Vaillant boilers


Making boilers for over 160 years, Potterton boilers have now been installed in over 7 million British homes! Potterton improved their boiler range further by becoming part of the Baxi Boiler Group in 2000.

Read more about Potterton boilers


Established back in 1866, Baxi make some of the best boilers on the market, like their award-winning highly efficient Platinum 33kW Combi boiler.

Read more about Baxi boilers


Ideal have been making boilers for over a century and today offer a range of highly efficient boilers, like the Vogue 32C combi – Good Housekeeping magazine reader recommended in 2017!

Read more about Ideal boilers

Our easy Boiler Installation process

Having looked at the type of boilers and manufacturing brands in the market, it’s now time to take you through the quick and easy process we have at Boiler Plan UK for choosing the right boiler and getting it installed with no hassle.

Step 1

Provide us with a few details (what type of fuel you use, the size of your house, etc.) using our Instant Quote online tool or by calling our freephone number 0800 61 22 302 and you’ll see the available systems and prices for your home requirements.



Step 2

When you’re ready to go ahead, we’ll complete a survey in whatever way you prefer. One of our expert surveyors will complete a survey at your home, or if you’re struggling for time you can do a Video Survey with one of our surveyors on your smart phone or tablet.

Step 3

Following the survey we provide you with a fixed price quotation with no hidden extra charges. You choose one of our flexible payment plans where you can choose from ‘buy now pay later’ to monthly repayment plan options with low APRs.

Step 4

One of our friendly local Gas Safe registered engineers will install your new boiler. They’ll turn up when they say they will, do a quality job, and even tidy up after themselves! That’s why we’ve been awarded the Which? Trusted Trader accreditation.

Step 5

You sit back, relax and enjoy your new central heating and hot water system with the piece of mind that if there are any problems you have a free manufacturer’s guarantee included for up to 10 years covering any parts, labour and call outs.

We’ll always be on hand if you need us

Once your brand new boiler is installed and you’re enjoying the benefits of a lovely warm house and plenty of hot water, that’s not the end of our service. Whenever you need us simply contact us and our friendly Customer Service team will be on hand to help.
But don’t just take our word for it, our customers have given us an excellent rating of 9.7 out of 10 on Trust Pilot!

To find out how little your boiler replacement can cost with Boiler Plan UK, get an instant quote or contact us now on 0800 61 22 302.